[Primary hyperparathyroidism. Report of 4 cases].
D000236:Adenoma / Q000473:pathology*; D000328:Adult; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010282:Parathyroid Neoplasms / Q000473:pathology*
Hiperparatiroidismo primario. Communicación de cuatro casos.